Engine Controls - Tests W/Codes - 7.4L
- Model Identification
- Introduction
- Self-Diagnostic System
- Trouble Code Charts
- Notes
- Code 13, Open Oxygen Sensor Circuit
- Code 14, Coolant Sensor Signal Voltage Low
- Code 15, Coolant Sensor Signal Voltage High
- Code 16, VSS Buffer Fault
- Code 21, TPS Signal Voltage High
- Code 22, TPS Signal Voltage Low
- Code 24, Vehicle Speed Sensor - "C" & "K" Series
- Code 24, VSS Transmission Output Signal - A/T
- Code 28, Transmission Range Pressure Switch
- Code 32, EGR Circuit Error BACKPRESSURE EGR With Sol
- Code 32, EGR Circuit Error With EVRV Solenoid
- Code 32, EGR Circuit Error - "P" Series With Linear EGR
- Code 32, EGR Circuit Error - Series W/ Linear EGR
- Code 33, Map Sensor Signal Voltage High
- Code 34, Map Sensor Signal Voltage Low
- Code 35, Idle Speed Error
- Code 36, Idle Speed Actuator Fault - A/T
- Codes 37/38, TCC Brake Switch On/Off
- Code 39, TCC Stuck Off - 4L80-E Transmission
- Code 42, Ignition Control
- Code 43, Knock Sensor Without Spark Module (Dual Sensors)
- Code 43, Knock Sensor Without Spark Module (Single Sensor)
- Code 43, Knock Sensor With Spark Control Module
- Code 44, Lean Exhaust Indication
- Code 45, Rich Exhaust Indication
- Code 51, Prom Error (Faulty Or Incorrect Prom)
- Code 52, Faulty CALPAK
- Code 52/53, System Voltage High
- Code 55, ECM/Pcm Error
- Code 54, Fuel Pump Circuit
- Code 58, Transmission Fluid Temperature High
- Code 59, Transmission Fluid Temperature Low
- Code 66, 3-2 Control Solenoid CKT Fault 4L60-E Transmission
- Code 67, TCC Solenoid Circuit Check - 4L60-E Transmission
- Code 68, Overdrive Ratio Error - 4L80-E Transmission
- Code 69, Torque Converter Clutch Stuck On 4L60-E Transmission
- Code 69, Torque Converter Clutch Stuck On 4L80-E Transmission
- Code 72, VSS Circuit Loss Transmission Output Signal
- Code 73, Pressure Control Solenoid (Current Error)
- Code 74, Transmission Input Speed Error 4L80-E Transmission
- Code 75, System Voltage Low
- Code 79, Transmission Fluid Temperature High
- Code 81, Transmission 2-3 Error
- Code 82, Transmission 1-2 Error
- Code 83, TCC Solenoid Circuit Fault
- Code 85, Undefined Gear Ratio
- Code 86, Low Gear Ratio Error
- Code 87, High Gear Ratio Error
- Summary
- Wiring Diagrams